Startechcom 2 port vga auto switches startechcom st122vgau this vga auto switcher from startechcom lets you share a display between two computers and prioritise your vga signals the vga switch features a primary and secondary vga input port and automatically outputs the signal from the primary input when the signal feed connected to the primary input port is cut the switcher automatically defaults to the video signal on the secondary vga input portdesigned for maximum control and vers